Turntable



Jan. 2, 1951 C, POYNER 2,536,218

TURNTABLE Filed March 18, 194e Y 2 sheets-sheet 1 FHA/VK C PUY/VER Byawm A TTOR/VE Y Jan. 2, 1951 F. c. POYNER 2,536,218

TURNTABLE l Filed March 18, 1946 2 Sheets-Sheet 2 MNE/vrom FRA/VK 6. PUY/VER ATTORNEY Patented Jan. 2, 1951 UfNrr ED-- 1:? Zils:

IURNTABLE Frank; :San- Diego; CaliL Amleaticnmamhls; 1s-ia ,Seriana 65513417 My invention'relates toa turntable" forfusev in' turning variousY vehicles substantially: 1'8'99 and4 theobjects of lIny'invention are.: t

First; to providel a turntable -o 'this class which; is entirely automatically operated bythervehielet driven thereon.

Second', to provide a turntabley ofi thisL classfI which is motivated bythe traction w-hee'llsfofffttie vehicle driven thereonv in engagement with rolltns:

thereofwhich arev` automatically-v locked? against rotative lmovement afterthe vehicle in connection with my turntablehas` been-rotatedsubstantialiyr 180 about the axis of theturntable; Wherebytl'le operatingtraction wheels ofJ the vehicle movern the vehicle from the-rollersof theturntableands forcethe same off theturntablainthe-opposite direction of the original approach.

Third, to'provide a turntable ofthsclass whichl isv very useful in turning trucks' or'thelikewhen transporting earth and rocks yfrom an excavation:

Fourth; to `provide a turntable'of this'classhawing an automatic-clutch operatinglever; which is tripped when the turntable/frame rotates relai-- tively to the base; providing-automatic, reversal ofi the turntable frame ateach successive'ioperatlve. movement thereof'.

Fifth, to provide anturntableof thiseclasgin which-the indexing latch in connection' witlrti-iebase isl automatically disengaged fromthe--turn' table frame by the vehicle as -it is driven'upon-the turntable frame.

sixth, to provide a turntable-@rams elasswhien.

is. veryv simple and economical" of" construction; efficient in operation and which will not readilydeteriorate orv get out of order:

VWith these'and other objects'irr View" as' will appear hereinafter, my invention consists of certain novel features ofconstruction; combination and arrangement of parts' and portionsas'will be hereinafter described in* detail and; particularly set' forth in the appendedclaimsz; Referenceisf tary sectional view, takenfrom' the-line 5`5 of" Fig. 4, showing` the clutch mechanismoffmy turn table, and Fig. 6 is a fragmentarysectional?View;

2': v Siniilarl charactersl of reference referf-'totsimilan and' portions throughout theseveraliviews: ofthedrawings.

Thelbase -I, *turntable` frame 2;1 wheel tracks; a; indexinglatch- 4; rollers-5 and 61', shafts 'Ilandtg synchronizing gears:V` 91 andv Il'I,l idler gears:-` IrJfz. and: IZgworm gears I'3l and I4; worm Wheels; Iandi f6; gear HI, ring gearl If8-,' bevel gears I9f and 20; clutch members 2 I f and."l 22; clutch shaftsA 23?' and: 24; clutchr operating: bracket 25; clutchoperating?Y lever Mi; clutchoperatingspring 27; stop-'meme bers 28; wheel'sLZB andithefaxle--3`l1'A constitute theiprinci-ple-parts andd portions of" my turntable.-

Thebase2 IZ is. -a=.substantially, disc shapedv plate-v I preferablydisposedlinhorizontaljat conditionersshown: best in Figure2fof' the-drawings; It will be noted* thatv this base I mayvl be Varied: in. con@ struction withoutl altering the l mechanical opera-.+- tiorr ofP my-` turntable@ The 1 turntablev frame 21' is 9.- substantiallylat" disc shape plate arrangedi tod supportthe major-portion of theJoperatingmechi. anism-y of myf turntable. Securedi ony the upper part? of the-turntable'-frame =2 is a pair offlsubstanetially U--shapedf iir cross section wheel` tracks: 3' arrangedl in guider ttie- Wheels off the vehicleY in alignment. with` therollers-E 5'- and 6'2- The cross sectional shapef offi these wheel-1 tracksf- 3J is best shown inx Figure` 4 of' the-I drawings in I alignment with the/roller 5E These rollers 5;-and562are1fxed on. the shaftsl 'I and 8'frespectivel-y on which the synclironiz-inggearsL 9i and I 0"I respectifvely-l arese cured inter-meshing with the idlerfgears'. I2`v and I'l respectively-for synchronizingtheeoperationof the shafts@ 8- w-itlfiseach-v other and'f the shafts?l 1 with each other. Theseshafts 1 and 8 aresecured to the`r turntable frame12 bybe-ar-ings- 'la and-8a respectively.. Secured on onefof=`the=-shafts lis the-worm-gear I3 meshingwith thefwoifmzwlieel Iii-ont thesquare in cross section clutcl'r-slialty 24 revolubly:mounted-inthebrackets--Zu-atitseopp site ends; said lsiracketI beingV scour-edito fthe' turn*- able.

bevel gear 2 0v is'l provided" withY an Y annular.' groove illa'l engaged bythe cl-utchoperatingbrochet- 251i At oneside-z ofj theannular groeve'- por-tion ZDa'f is av clutch,engaging-portion Zbpreferablyintegral with th'ebevelgearf 20"-1and` arranged: to engage the-cl`utch member-'ZI'.K It will-bel noted that'the. clutch members 21 and f2"2 are -of similar 'form and are-secured to the turntable frame-f2. As shown in=Figure 4' of the drawings,` the clutch-memberf22 is. provided with# apair@ of teeth 22a'r engageable with the clutch engaging t'eetzr4 Iaf of the bevel im bevel'lgearf: I3 is=-provided with Slidably` mounted'l on the square inf; crossA section'clutch shaft' 24"isfthe'bevel gearf annular groove I9b engaged with the clutch operating bracket 25, all as shown best in Figure l of the drawings. The clutch shaft 23 is square in cross section as shown in Figure 4 of the drawings and is substantially identical to the clutch shaft 24 and is revolubly mounted at its opposite ends in bracket members 23a secured to the turntable frame 2. The gear I'I is secured on the clutch shaft 23 and meshes with the gear I5 revolubly mounted in brackets 23a and I5a as shown in Figure 1 of the drawings. This gear I5* l wheel and meshes withv y is in the form of a worin the worm gear I4 on one of the shafts l as shown lbest in Figure 4 of the drawings. shafts 'I near opposite ends are vthefrollers ,5

adapted to engage the driving wheels of avehicle.

Secured on'thev vand that the indexing latch 4 is stationarily -secured thereto.

' The operation of my turntable is substantially .as follows: When an automobile is driven upon by turntable toward the indexing latch 4 with the Fixed on the shafts 1 are the synchronizing gears 9 intermeshed with the idler gear l2 arranged to synchronize the revolubl operation of the shafts 1.. Secured on the base I is the ring. gear I8 adapted to mesh with the bevel gears I8 and 25' supported by the turntable frame 2. The clutch operating bracket 25 is reciprocally mounted'on the axis ofthe clutch shafts 23 and 24 and VIis arranged to be shifted longitudinally thereof, carrying the gears I9 and out of mesh with the ring gear i8.' ll'his clutch operating bracket 25 is substantially rectangular in form and is provided with slotted bearing portions 25a in which screws 25h are positioned. VIt will be noted that the slotted portions V25a lare parallelto-the axis of the clutch shafts 23 and 24 permitting reciprocation of the clutch operating bracket 25 about the screws 25D all as shown best in Figure 1 of the drawings. Figure 2 of the drawings extending downwardly and into engagement with alternately into and vAs shown in the clutch operatingI bracket is provided with iinger portions 25e 'wheels of the vehicle" in alignment with the tracks 3 the-bumper or other fixture in connection with the automobile pivots the indexing latch 4 out of engagement with they turntable frame 2 and the driving wheelsof the vehicle engage the rollers 5 or 6 as the case may be for operating the turntable. As shown in Figures 2 and 3 of the drawings avehicle approaching the indexing latchv 4 theV annular groove portions I 9b and Mirror the bevel gears I5 and4 20 respectively. The turnltable frame 2 is provided with a hollow 4cylindrical sleeve portion 32a engaging the outer side vof the axle 30 secured to the base I about which the turntable frame 2 rotates, as shown best in Fig; Y.

ure 1 of the drawings.v lever 26 is pivotally mounted ,on the bolt 425;; secured to the turntable frame 2. The clutch operatingspring 21 is secured to the hub 35d of the turntable frame 2. The opposite end of lthis spring 21 is connected with the clutch operating lever 28 outwardly of the axis of the bolt 25a whereby the pivotal movement 'ofv thelever 26 causes the axis of the spring 21 to pass the axis of the bolt 25a tending to force the lever 25m the opposite direction. As shown in Figure 1 of Ithe drawings, this clutch operatinglever ,26 is T-shaped and is provided with an arcuate slotted portion 26h engaged by a pin 25e secured to the clutch operating bracket 25. I The clutch operating lever 26 is provided with a laterally oset por-` tion 26o extending intoradjacent relation with the base plate I on which the s top members 28 are positioned substantially from each other thereon arrangedto limit movement of theclutch operating lever 26 when the turntable frame 2 is moved around the axis of the axle 30. -r The wheels 2S are supported on the turntable frame 2 by :brackets 29a secured thereto. These wheels 29 lbear/,upon the basel and support the turntable frame 2 in spaced relation with the baseH I as shown best in Figures 1 and 2 of the drawings. The indexing latch 4 is provided with an engag- The clutch operating and having rear driving wheels proceeds until the indexing latch 4 is disengaged as hereinbefore described, whereupon the rear driving` wheels engage the rollers 5. AsY the power is continually applied to the driving ywheel of the vehicle, the rollers 5 are rotated together with the synchro# nizing gears 9 and idler gear I2. It is noted that the rollers 5 and 6 are each provided with arcuate in cross section annular peripheral portions adapted to engage the tires of the vehicle wheels.

When the shafts 1 of the rollers 5 and the gears 9 are rotated, the worm gear I4 on one of the shafts I in mesh with the worm wheel I5 causes rotation of the gear I1 enmeshed therewith to.

gether with the shaft 23 and bevel gear I9 en` meshed with the ring gear lsecured on the base I. vAs shown in Figure 2 of the drawings, the bevel gear I9 is engaged lwith the ring vgear IB whereby the turntable frame 2 is propelled about the axis of the axle 3D by rotative Yoperation of the bevel gear I9. As the turntable frame 2 rotates about the axis of the axle 3l),v the notched portion 2b is rotated to a position corresponding. to the notched portion Zaas Yshown in Figure3 of the drawings, whereupon the clutch operating lever 26 engages one of the stop members 28, shifting the lever 26 until the axis of the spring 21 passes over the axis of the bolt 26a whereupon the tension of the spring forces the lever 26 in the opposite direction engaging the pin 25e on the clutch operating bracket 25 inthe opposite end of the arcuate slottedportion 2Gb slidably shifting the bevel gears I9 and 20 longitudinally of the rectangular in cross-section shafts 23 and 24 whereby the bevel gear I9 is disengagedfrom ring gear I B and the bevel gear 2Q is'engaged therewith and freely rotatable intermediate the fingers 25e of the clutch shifting bracket 25 in the annular grooved portion 20a of the gear 2G. It will benoted that the notched portion 2a `of the .turntable frame 2 is Ythen engagedwith the ro1ler4a of the indexing latch 4 whereupon vehilcles may be driven ontoA the rollers 5 and 6 wherebythe driving wheels of the vehicle rest'upon the rollers 5. During operation of the rollers 6 the turntable frame 2 is operated in the reversed direction until the clutch shifting lever 23 contacts one ofthe stopsV 28 and shifts the clutch operating bracket so that, the beveljgear I9; again enmeshed With thering `gear I8;- and.. the bevel gear 20 is out of mesh therewith. Thus other said pair of gears with said clutch means on said turntable frame.

5. In a turnable of the class described, the combination of a turntable frame, a base therefor wheels for supporting said frame on said base, a ring gear on said base, a clutch operating bracket reciprocally mounted on said turntable frame, a pair of gears connected with said clutch operating bracket, each adapted to engage said ring gear individually, clutch means connected y with each oi' said pair of gears and clutch means on said turntable frame engageable with each of said pair of gears, stop means on said base, a trip lever on said turntable engaging said clutch operating frame, and engageable with said stop means when said turntable moves relative to said base for reciprocating said clutch operating frame whereby reciprocal operation of said clutch operating bracket engages one of said gears with said ring gear and engages the other oi' said pair of gears With said clutch means on said turntable frame, vehicle Wheel engaging rollers operatively connected With each oi' said pair or' gears.

6. In a turntable of the class described, the combination oi a turntable frame, a base therefor wheels for supporting said frame on said base, a ring gear on said base, a clutch operating bracket reciprocally mounted on said turntable frame, a pair of gears connected with said clutch operating bracket, each adapted to engage said ring gear individually, clutch means connected with each of said pair of gears and clutch means on said turntable frame engageable with each of said pair of gears, stop means on said base whereby reciprocal operation of said clutch operating bracket engages one oi' said gears With said ring gear and engages the other oi said pair of gears With said clutch means on said turntable frame, vehicle wheel engaging rollers, operatively connected with each of said pair of gears, a clutch shifting lever pivotally connected with said turntable, said stop means substantially 180 apart on said base engageable with said clutch operating lever for reciprocally shifting said clutch operating bracket.

'7. In a turntable of the class described, the combination of a turntable frame, a base -therefor Wheels for supporting said frame on said base, a ring gear on said base, a clutch operating bracket reciprocally mounted on said turntable frame, a pair o gears connected with said clutch operating bracket, each adapted to engage said ring gear individually, clutch means connected with Yeach of said pair of gears and clutch means on said turntable frame engageable with each of said pair of gears, stop means on said base whereby reciprocal operation of said clutch operating bracket engages one of said gears with said ring gear and engages the other of said pair of gears with said clutch means on said turntable frame, vehicle Wheel engaging rollers, operatively connected with each of said pair of gears; a clutch shifting lever pivotally connected with said turntable, said stop means substantially 180 apart 0n said base engageable with said clutch operating lever or reciprocally shifting said clutch operating bracket, a spring connected with said turntable frame and said clutch operating lever arranged to pass over the pivotal Vaxis thereof for exerting tension over the axis of said clutch operating lever for pivotally moving the same together with said clutch operating bracket.

8. In a turntable of the class described, the

Vcombination of a turntable frame, a base therefor wheels for supporting said frame on said base, a ring gear on said base, a clutch operating bracket reciprocally mounted on said turntable frame, a pair o gears connected with said clutch operating bracket, each adapted to engage said ring gear individually, clutch means connected with each of said pair of gears and clutch means on said turntable irame engageable with each of said pair of gears, stop means on said base whereby reciprocal operation of said clutch operating bracket engages one of said gears with said ring gear and engages the other of said pair of gears with said clutch means on said turntable frame. vehicle Wheel engaging rollers operatively connected with each of said pair of gears; a clutch shifting lever pivotally connected with said turntable, said stop means substantially 180 apart in connection with said base engageable with said clutch operating lever for reciprocaily shifting said clutch operating bracket, a spring connected with said turntable frame and said clutch operating lever arranged to pass over the pivotal axis thereof for exerting tension over the axis of said clutch operating lever for pivotally moving the same together with said clutch operating bracket, said clutch operating lever having an arcuate slotted portion therein at one end, said clutch operating bracket having a bearing portion engageable with said clutch operating lever.

9. In a turntable of the class described, the combination of a turntable frame, a base therefor Whee for supporting said frame on said base, a ring gear on said base, a clutch operating bracket reciprocally mounted on said turntable rame, a pair oi" gears connected with said clutch operating bracket, each adapted to engage said ring gear individually, clutch means connected with each of said pair of gears and clutch means on said turntable frame engageable with each of said pair of gears, stop means on said base Whereby reciprocal operation of said ciutch operating bracket engages one of said gears With said ring gear and engages the other of said pair of gears With said clutch means on said turntable frame, vehicle Wheel engaging rollers, operatively connected with each of said pair of gears; a clutch shifting lever pivotally connected With said turntable, said stop means substantially 180 apart on said base engageable with said clutch operating lever for reciprocally shifting said clutch operating bracket, a spring connected with said turntable frame and said clutch operating lever arranged to pass over the pivotal axis thereof for exerting tension over the axis of said clutch operating lever for pivotally moving the same together with said clutch operating bracket, said clutch operating lever having an arcuate slotted portion therein at one end, said clutch operating bracket having a bearing portion engageable with said clutch operating lever, an indexing latch pivotally connected with said base and engageable with said turntable frame at its periphery and extending above said turntable frame adapted to be engaged by a vehicle on the upper side 0I said turntable frame.

10. In a turntable of the class described, the combination of a turntable frame, a base therefor Wheels for supporting said frame on said base, a ring gear on said base, a clutch operating bracket reciprocally mounted on said turntable frame, a pair of gears connected with said clutch operating bracket, each adapted to engage said ring gear individually, clutch means connected with each of said pair of gears and a clutch means on said turntable frame engageable with each of said pair of gears,l stop means on said base whereby reciprocal operation of said clutch operating bracket engages one of said gears with said ring gear and engages the other of said pair of gears with said clutch means on said turntable frame vehicle Wheel engaging rollers operatively connected with each of said pair of gears, a clutch shifting lever pivotally connected with said turntable, said stop means substantially 180 apart on said base engageable l with said clutch operating lever for reciprocally shifting said clutch operating bracket, a spring connected with said turntable frame and said clutch operating lever arranged to pass over the pivotal axis thereof for exerting tension over the axis of said clutch operating lever for pivotally moving the same together with said clutch operating bracket, said clutch operating lever having an arcuate slotted portion therein at one end, said clutch operating bracket having a. bearing portion engageable with said clutch operating lever, an indexing latch pivotally connected with said base and engageable With said turntable frame at its periphery and extending above said turntable frame adapted to be engaged by a vehicle on the upper side of said turntable frame,

10 said turntable frame having notched portions therein at its periphery engageable with said indexing latch member.

FRANK C. POYNER.

REFERENCES CITED The fol. wing references are o1" record in the file of this patent:

UNITED STATES PATENTS Niunber Name Date 923,825 Elmer June 8, 1909 967,581 Sleph Aug. 16, 1910 1,112,673 Brown et al. Oct. 6, 1914 1,354,285 Corpee et al Sept. 28, 1920 1,647,678 Willbanks Nov. 1, 1927 1,718,810 Dillon June 25, 1929 1,772,075 Exon Aug. 5, 1930 1,828,959 Cook Oct. 27, 1931 1,966,866 Miller July 17, 1934 2,044,031 Van Nieuwland June 16, 1936 FOREIGN PATENTS Number Country Date 694,071 France Nov. 28, 1930 

